Assume range limit when it is omitted
Add documentation for replace -c option

replace -c was added in 658e350c, but not documented (or tested, for
that matter).
Fix various off-by-one errors
Workaround for slightly weird optimist behaviour.

Optimist allows you to specify that an argument should remain a string,
not parsed as an integer. However, this rule isn’t applied when an alias
of the option is used.
Merge pull request #92 from andylolz/69-range-limit

Assume range limit when it is omitted - fixes #69.
[#19,cli][s]: move cli "bin" files to bin subdir + bin entry in package.json.

* package.json entry is needed to have datapipes available properly on command line
[refactor][xs]: LICENSE.md is no longer executable :-).
Nicer github markdown highlighting?
Support negative column indexing
Merge pull request #96 from andylolz/11-neg-indexes

Support negative column indexing